| Item | Unit | Data | ||
| Rated voltage | kV | 12 | ||
| Rated short-time withstand current (thermal stability) | kA | 40 | ||
| Rated short-circuit duration | S | 4 | ||
| Rated short-circuit closing current | kA | 80 | ||
| Rated peak withstand current (dynamic stability) | kA | 80 | ||
| Rated insulation level | Rated short-time power frequency withstand voltage | kV | Phase to ground and phase to phase | 42 |
| Rated lightning impulse withstand voltage | 75 | |||
| Mechanical life | times | 2000 | ||


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